Thermostatic alarm device



Nov. 23 1926.

,607,948 J. GRABOWSKI THERMOSTAT C ALARM DEVI CE Filed Nov. 6, 1924INVENTOR ATTORNEY means connected to Said screw to indicate thetemperature et which tire seid oet will close the seid switch for eachadgnstment of the seid screw, characterized by seid screw being'provided neer its lie-ed with vertically spaced radial llunges, oet/Weenwhich projects one und 'the horizontal erm of e beil mani; that isfulcruined to e board, tbe other ern; of this crank being in the form ofe pointer that extends u Werds, and registers with nn indicating see eon the said beard.

The combination in n device of the class described 1gnoviuled with enadjusting screw bearing on the fienible bottom member of aineicnry-iilled receptacle, with e float supported by the mercury, undnligned to close e Switch upon the expanding, by beating, or :saidmercury, of vertically spaced radial tinnges integral with saidadjusting screw, e bell crank lever fulcrumed to a board, heving itshorizontal erin projecting between seid flanges, and its other arm inthe form Lemme of a pointer extending upwards, and regis- 1toerin withan indicating scale on the'said OST 3., The combination in u. device ofthe class described provided 'with an adjusting screw bearing on theleXible bottom member of a mercury-filled receptacle, with a. floatsupported by the mercury, and aligned to close a. switch upon theexpanding, by heating, of Said mercury, ofvertically spaced radia iangesintegral with seid ad'usting screw,l

whereof I `have affixed my JOHN GRAisoWsKr.

